Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e4b727ace64c8a…

MALICIOUS

PDF

76.8 KB Created: 2021-09-13 07:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: bce69b3fe844ca2397ca2098bf377de1 SHA-1: 4dac67bd9e29d44c2d9b1bf79ac6805cbc40ff6d SHA-256: d3e4b727ace64c8a5557a6043f187cfcf617685d7c3132cbbbb9791f23b38699
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 6

  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://aahs.givingplan.net/sites/default/files/editor/file/xibowotojasesa.pdf In PDF document text
    • http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/21961321181.pdfIn PDF document text
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/78562889295.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec232a6d5f---jekirud.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/u4ngfe0l5jobmmhj3c9n3823a6/mozerubefojunu.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/0e8130a6b943c15e0892a58e73f53d5c/22293735192.pdfIn PDF document text
    • https://handientu.vn/userfiles/file/digisaregusetukokajo.pdfIn PDF document text
    • http://softwaretesting.kr/club/data/userfiles/file/20210907014636.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f85ce40029---mabinopesegoru.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/fiwodabajepinorofik.pdfIn PDF document text
    • http://haliburtonhighlandsheritage.ca/userfiles/file/fakozurolikokijamonokis.pdfIn PDF document text
    • http://anduong-nhatthanh.com/uploads/news_file/tovezapezokif.pdfIn PDF document text
    • http://simpelms.nl/userfiles/files/52658062752.pdfIn PDF document text
    • http://amphorabeautyclub.com/campannas/file/57684541922.pdfIn PDF document text
    • https://devcons.org/uploads/userfiles/files/8965597486.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/161336798ea7b0---fomezow.pdfIn PDF document text
    • http://www.cenlajobinator.com/siteuploads/editorimg/file/6345796154.pdfIn PDF document text
    • https://bakotech.at/uploads/ckeditor/files/27726761595.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613bba8fe1e09---nifadusunekopakuxidosed.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613123e6eabc9---jobejuzixitomovawivaw.pdfIn PDF document text
    • https://qian-ho.com/upfiles/editor/files/jebegini.pdfIn PDF document text
    • http://rudolphalexander.com/uploads/files/79995176853.pdfIn PDF document text
    • http://almawred-sy.com/files/adminfiles/files/94623567120.pdfIn PDF document text
    • http://tcyy88.com/userfiles/file/2021090312334273499.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=subway+surfers+unlimited+coinPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E1 17332 bytes
SHA-256: cf770967a4f1409ee8331d816d9b3d7b0066d66e0f57af1067b9791aa776ecf8
font_01_sfnt_off0000f3d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BEB 11152 bytes
SHA-256: 16c75c96cb093d726cad615b2c1278bd7b94a5811e12d99e154ac11fef1641c8